Fuel-supply system



SHEETS-SHUT 1.

M. PARNES.

FUEL SUP`FLY' SYSTEM.

APPUCAUGN man NGV. i5. m19.

WJ. PARNES.

FUEL SUFPLY SYSTEM..

PPLIYHON FLED NOV. l5, 1.91.9.. l ,34M l 5@ Paen'e May 25, 1920.

2 SHEETS-SHEET 2- lll ille nnnilier oir .nm iid a..

'FEEL-SUPPLY Application le November l5, MMS.

eonnty and itageV oi' New York, have ini'e-iiferl :i iew and. improved Puel-Supply Si ein, of which the 'following' a i`nll7 climi', nil exact description.

The. present invention relates to new and, i inl inipi'oi'en'ients in 'fuel systems' for inernal combustion engines, and it pertains more particularly to that 'tj/po of "hiel sys? tenis in which the opeiaion if; carried oni, li'y means of a partial vacnrnn.

ln oonneetion with internal combustion engrinea, it is Sometimes desirable o have the Soni-ee. oi fuel supply located at a point remote from the ("liarge-iforrning device, oii tho engine, and it not always possible to so posiiion this; source. oi supply to have a graviy feed oi' the inol yto Saii'l charge forming' Cle'ViCe. l

in eonnection with iniernal combustion engines when their system is arranfrefl as above siate-(l, it is usual to employ an aix- 1 iliary tank or i.i\,ceptaele which 'feeds the charge-forming device by grai'ityini'l to provide automatici ine/ans for sngplying che auxiliary tank, and it is this type of system to which the present invention more specifically pertains.

lt. is the iii'iinai'y object of the presentinvenion to supply the auxiliary reeejpiaolo willi 'fuel from the main reeelitaolo ant/o-l niatieaily ln.' ihe ereation of a pariial viren# inn within the auxiliary receptacle.

it a 'linrlliei' object oi ille invention to 'proilnee this vacuum in the auxiliar); recepiairle by entalilisliingi Communication he- 'tween the auxiliary receptacle and. the intake manifold of the nioor.

lt a further ob'jeet of the invention to provide means 'for automatically controlling the vaeninn dependent upon the liquid level in the auxiliary receptacle.

A further object ofthe vinvention is to provide a device oi this oliaraoter in which Working parts is inaverially dleoreasoifl, Y

ln the drawing 'li wnrel is av View partly in. section and Qosiition which hey occupy filon "iw vaoiinin opeiaiinf,

is :i similar 'View 'vih the several in elie'vaiion oi? 4"une lei/'ico 'with the parla in when lie. van

Referring more epeeiiif in. gs, the reference (zii arno Suitable inolmonminii which inafff' he iooainil @nini remote from 'the auxiliary recepi'aolo n, ,ia so munir as it is connected ilierewas shonfn in, the present inaianoe5 off means; oi? a pine tube T. Y A

The :Limiliar;T ieoepiaelo o ,i chambers 5' anrl said man: ors Qing; iorn'iorl by internos ngi pari-iion l0 between the Open em and. l2a said open en lf3Nan and. secured zof' oi tivo members l i lining flanged ai.; ai 7 y. i er by means oi: boing" rives, or the like lll. The ogiii'iosiie onda oi' the connecting' pipeare ecnre oy screntlireaclefl Collars lo and i? izo iuhe niain supply tank anil ille upper .fhanilgier 23 Tof "i5 tho auxiliary 'reizen' icio (L 'reopen lli; The upper wall 1S of the chamber oi' the auxiliary i'ecejliaele is pi'ovirleil wi n an opening lh with which the {.onnei'inlg' ,ii'ie oni'iuhe 7 communicates. Y f

.liigidly secnreil lo the nip Wall' oi" the chamber is housing die upper liano of which provisflefl wiiil'i a hollow e5@- tension 2L the purpose of which will ne hereinafter more fully sel; forth, "l" or lower end of thin lioiiaingg Q; with a valve seat anni. le" ning iroin :'aiiil hanging' at a point 'profi lily on the exi-orioi of lli@ Chamber il, ia a pipe or ignlie 22:", 'which is Cimneeiil with the inanijfoifl of the internal einiiiinaiim engine with whirh this devine is nneil` in :suoli ay manner liai as the engine oiaeraii'en, the eiieci of the vaonnin which is 'iiioifinooil ailaots 'the interior oi il'ie Chamber 8 of ille anfiiliary rece )taaie (i.

li: onnted in the chamber S of the auxiliary receptacle anfl Carriecl by the partition lOQiS a Vertical tubular extension ZQtlienpper end of which is open. The pariqition wis' provided Wiih a valve opening 2G, which is preferably Centrally ililpoiied 'with respect to 'the hoi-toni oi iziie inlinla'r ineinlier 25, and this opening 26 'for-insa means oi' 'estan lisliinf conin'innieaion beiioon tliojiiil5`ii-la 'member Q5 and the limi' chamber oilftlie auxiliary receptacle. T reie-renoooha ac ter Q7 deaignaies lirailfet, 'which is Se', real as ai. @il io the unile? 'lane oif pafm 1G, anfl said ,bracket infini; a guiding means 'ogauni-liary `,receptacle 6.

Mounted adjacent the upper end of this rod 29, is aJ Valve member and said valve member is adapted to engage the valve seat 22 to shut off the pipe or tube 23 and relieve the. Chamber 3 from the influence of the l@ vacuum produced in the heretofore described manner. Surrounding the openingl 26 is alvalve seat 33, and carried by the rod 29 is a ialve lmember b4" which is adapted to seat on the valve seat 33 to close the open- 5 ing 26, which establishes communication between the tubular member and the lower Chamber 9' of the auxiliary receptacle 6.

rhe reference Character 35 iesi 'lates a lloat secured to the rod 29. The reference i character 40 desionates a tube or )i Je which c Y is adapted to establish communication between the upper chan'iljier 8 and the lower chamber 9 of the auxiliary receptacle, and said pipe or tube 40 is secured at one end as at ell, to the partition l() on its under side. T he other end of this pipe l() is provided with an elbow or similar fitting; 4Q, the open end of which is formed with a valve seat and is positioned beneath the opening-*26 in the partition l0.

Carried by the rod 29 is a valve 44E, and said Valve 44 is adapted to engage the valve seat 43 to close the open end ot' the pipe or tube 40. The reference character 59 designates the supply line for the charge-forming device and said pipe extends upwardly into the lower chamber 9 oli the auxiliary receptacle 6, as indicated by the reference character 51, in order that sediment, Water; or other material detrimei'ital to the opera tion of the charge-forming` device may settle at the bottom of the chamber 9 and the fuel be draivn oil at a level thereabove.

For the purpose oli' draining the deposits L15in the lower Chamber 9 of the auxiliary receptaele, a drain oook 5l is en'iployed, and in order that the device may readily'VI operate,

the lower chamber 9 is adapted at alltinies to be 1n-commumeat1on with the atmosphere 5G by means of the vent pipe the fuel contaned therein to insure a smooth Working ot' the charge-formingdevice. As theinotor is started with the parts in the position shown in the drawings, a vacuum is-ereated in the upper chamber S ot the The production oi* this vacuum bauses a, flow of fuel from the main tank 5 into the chamber 8, through the medium of the pipe or tube As the fuel continues to flow into the upper chamber 8,

it overflows through the open end of the tubular member Q5, and said tubular mera ber likewise begins to till. its this tubular' member becomes approximately three-quan ters tulh the ioat 255 therein rises to close the valve 3l. against the valve seat E22. lilith the parts in this positiom tie vacuum through. the pipe 23, which is produced by the engine in its operatiom serves to aid `in maintaining the valve 3l to its seat thus shutting' oli the vacuum produced 'from the chamber 8.

l't Will not-ed that as thevalve 3l engages the seat the valve et is disengaged from the seat i5.' .This action opens the end of the pipe 4:0, and permits the fuel in the rhamber 8 to draintherethrough into the chai'nber 9. Siniultaneously with the closing ot the valve 3l and they ouenina' )it the valve il., the alte member i is hf ed from its seat 133 to pro J*ide a. drain for the tubular member lllith the alt-e Sel' open7 air is permitted to paas upvvz d through the tubular member f, to displa .e the fuel in the chamber fitter the 'fuel in the chamber 3 has been completely displace/th the tubular memlgier 25 is drained to permit of a lowering,- ot the {ioat to repeat the eyele ot ope-ra tion.

lt will also be'noted that the opening` 25 in the partition l() is considerably smaller than the openingy in the pipe e9. ln tact, the best results have been obtained by havingr` this opening 2G about onethird the size ot' the opening` e113. As the chamber 8 and the tubular member become drained7 the valves 34' and et are closed by the falling of the float7 anrh at 'the saine time, the valve 3l. is opened.

The foregoing' has described one cycle of operation of the apparatusnnd it is to be understood that eaeh time that the tubular member and the chamber 8 are drainer of their contentsthe apparatus automatically operates te again establish eonununication between the chamber Sand the mani-- fold of the engine order that the vacuum may a gain be 'iroduced the ohaniber 2l to lill the saine with fue] as heretofore described. The chargeforming device receives its fuel from the Chamber 9 by means of the pipe 50, Whieh as heretofore stated, is connected theij-eveitha l claim: i

l, n a vacuum feed system, vacuum pio ducingg` means, a 'vacuum chamber, a float chamber, a float in said float chamber, arod secured to the float in said Hoat ehaniben a valve the lower end of' said rod tor controlling the diseharge ifr in 'the "vaeuum chamber to the uel chamber, and a valve at ric llt

'the upper end of said rod for cherlringi the y ply, a fuel chamber, a vacuum cllanabe9 a vacuum producing means, a float chambe ,located in the iacuum chamber, a ca; mounted n the float chalmlieig1 and means' operatedlby the float in the fleet chamber for ,simultaneously checking the -vacuuln pl'oducing nieans and di'aning said Vacuum cliambe 3, A vacuum -feed fuel system, comprising a fuel Supply, a vacuum chamber, means o' picducmg a Vacuum in said chamber@ fuel,

' chamber, means for establishing comnun1- cation between the fuel chamber and the Vacuum chamber, `a valve 'controlling4 said cemmunicating means,` a valve ccntielling the Vacuum ploducng means, a float-chainlcer located in the Vacuum chamber, and a float. movable in 4 the float ychamber and adapted upon its movement simultaneously operate the valve in thel communicatl ingmeans between the fuel chamber and the 'vacuumchamber and the Valve-ci' the vacuum producingmeans,

4. A fuel feed system comprising in coin binaton with a 'vacuum podueng mea-nea vacuum chamber, a fuel supply, means connecting the fuel supply with the vacuum chamber, a fuel chamber, means connecting ber, means? for connecting the vacuum chambei* with the fuel chamber, a float chamlaer in the vacuum chamber and in, ccmmi'micae tion liercwlth and 1n communication with ling ille cennection 'e i bei end 'inne fuel clmiuloer* a val im checkthe fuel chamber, a valve foi controlling alie connection between the vacuum chamber and the fuel chambmf'a a Valve'oir ccfnaclu Ween the claaming elle Vacuum producing mee 'for siinulanecusly operating Lid valves.

6. ln a Vacuum fuel syste! lie combina /ion with a Vacuum pioduemg means, ci? a 'l'uel Supply., a wfacuum chainbera, Jfuel elif-mneignleans for cemiecing che vacuinn cli-an bei* with the fuel chamber.) a fleuri; cheminee in the vacuum chamber and in ccmxnunica,

tion therewith and in communication Wifn, the uel chamber? a Valve for controlling the connection between the vacuum cianbei' and the fuel chainbe, a valve for contieL ling the connectien liefween the float 'chambe and A-he hiel. eiiambegja valve feg? cheeking the vacuum prcdneing means, and menne 1n lthe iloat chamlcei' and movable by elle use .of liquid therein, said movable mean@ sew ing to ,simultaneously acluate Said waives.

7. In a vacuum fuel Syslemg a vacuum producing niveans, a valve fm checking the action thereof., a fuel Supply, a acuum chamber,a fuel chambeu means connecing; the fuel chamber with .the vacuum chamber?,

4means; cennecing the vacuum clainfeeii Wieh the fuel cliambef, a float chainlernwunteol 1u the vacuum ehanibe", a valve im' cen iellmg the means connecting the vacuum chamber' with the fuel chamber, a ,valve adapted to 'open 01'- close communication beween the float chamber and the fuel ehamber, a valve for checking alie acacn ef the vacuum producing meane, and a 'licei ifo? simultaneously operating said valves, the Valve of the float c'ambe sewing 'irs' a 'vent for the vacuum chamber and Subsequently as a dain. for the cat anemia-ein,

nieuwe Lemme. 

